Sifter



B. A. CARLSQN ET AL SIFTER Filed March 27, 1924 3 Sheis-Sheet 1 Dec. 1 1925- B. A. CARLSON ET AL SIFTER Filed March 27, 1924 5 Sheets-Shed. 2

Dec. 1 I l B. A. CARLSON ETA]:

Filed March 2'7, 1924 5 Sheets-Sheet 3 I Patented Dee. 1,1925

BESSIE A. CABLSON AND DLIVEB R. SNOW, OF NEWCASTLE, WYOMING, ASSIGNORS, BY DIRECT AND MESNE ASSIGNMENTS, 0F THIREE-FQURTHS TO SAID BESSIE A. GARLSON' AND ONE-FQUBTH TU MARY LB. CABLE'I'ON, BQ'E'H 033 NEWCASTLE, WY-

OMING. 1

fiIFTER.

Application filed March 27, 199%. Serial I30. 702,4jl25.

Z '0 all whom it may concern Be it known that we, Bnssm A. CARLSON and OLIVER R. SNOW, citizens of the United States, residing at Newcastle, in the county of Weston and State of Wyoming, have invented certain new and useful Improvements in Sifters, of which the following is a specification.

The present invention relates to domestic sitters and mixers, and particularly those employed for sifting flour and. mixing it with other materials.

- rAs iswell known, it is highly desirable that materials of this kind be passed. through 1 "ingredients. v

' and. completely elfected,

"a screen several times, in order to secure an even consistency and thorough-mixing of the I he primary object of the present -invention'is to provide an apparatus of this character, by which the results can be quickly 3 @Inltllfi accompanying drawings:

- I .4 Figure 1 is a side-elevation of one embodi- 'ment' of the invention,

Figure 2 is a front elevation of the same, Figure 3 1s a vertlcal sectional View on an enlarged scale,

' 4 threaded, is illustrated at 10 and 11. 1G po- Figures 4 and 5 are cross sectional views, respectively onthe lines 41-4 and 5-5 of Figure 3', Figure 5 being on a smaller scale,

' Figure 6 isa side elevation on an enlarged I scale ofithe gear housing, with thereof separated,=-

the parts Figure-7 is a similar view of the gear hous1ng';1n assembled condit on, F1gure 8 1s a sectional view on the line disclosed, abody ring sitely disposedreceptacl'es 12 andlfl ave theiropen ends also threaded, as illustrated at lrand 15,and respectively" screwed into the endsof the-body ring 9. Thereceptacle 12 has an outwardly tapered portlon 16 ter minating inafiared mouth 17 closed by a detachable cap 18 that may bethreaded thereto. In one side of the rece 'tacle 12 is an i f outletto'pening l9 normally 0 osed bya sliding plate 20. The other receptacle 13 is semi-spherical inform.

Extending acrossjthe body ring 9 38 a which journaled a driving shaft 28 that projects from one sideot the receptacle 12,

and has on its projecting end-suitable driving means. In the form shown a handle crank 29 is provided for the purpose." The inner end of the shaft 28 has a beveled gear 30 meshing with a beveled pinion 31 on the shaft 23. It will thus be evident that upon the operation of the shaft 28, the shaft 23 will be driven and the sweeps22 iotatedover the opposite surfaces of the screen '21. f'"

The gearing 3031 is enclosed in a homer ing designated generallyby the reference numeral 32 illustrated inhdetailin Figures 6, 7 and 8. The housing consists'ot two semi-cylindrical walls 33 311(134. "Themargins of one section or member, as 33, shown at 35 are inset so as to underlie the margins of the other section or member'il l, and said margins 35 are provided with tongues 36 adapted to pass through openings 37 in the other member 34 and be bent so as to hold the sections together; These sections are also provided with semi-conical bottom portions 38 and the sectionf33iis'provided with tongues 39 passed through openings 40 in the other bottom membernnci bentoutwardly, thereby holding'the housing in assembled relation.- This housingisfurther provided with a conical top. ell having a threaded flange 42 screwed upon the top end of the assembled housing body. ;Said housing body is provided with a transverse opening i 43 through which the shaft tid passes and Z with slots 44 through which extend the bar 26, these openings being preferably formed in the cooperating margins of the two sec; tions 33 and 34:.

The sitter may be supported in any desired manner. In the present embodimentit is shown as mounted on a portion-of a kitchen cabinet, designated 45, and-beneath the discharge end it} of a flour container.-

' said opening 19.

To this end a bracket l? is employed having a clip portion l8 that embraces a supporting flange 49 on the cabinet. and is held thereto by a set screw 50. The bracket is bifurcated and the arms 51 thereof extend on opposite sides of the receptacle 13. said receptacle hating trunnions 2 journaled in seats .33 formed in the outer end of the arms. Set screws 5%, passing through the seats. are adaptedito engage and hold the trunnions.

The-operation of the embtaliincnt of the sitter is as follows:' It the cap 18 is re moved flour can he delivered directly from. the discharge end 4-6 of the container 'into the upper receptacle 1?. and baking powder pr other materials maybe also placed in said receptacle. The cap 1815 then replaced and the sweeps operated. so as to sift the flour into the lower receptacle l3. The set screws 5-1 are then released and the sitter ma then he removed from the bracket. the opening 19 uncovered and an lumps that fail to pass through the screen can be removed through The sitter is then replaced in the bracket and position reversed. The-swceps'are again operated and the 11121- terial thus sifted hack into the I'GC-GPttlClQ 12. l-his operation'may be readily repeated as many times as desired. after which the cap 18 is removed and the contents discharged.-

" 'Froznt-he foregoing it is thought that the oonstruction; operation and man advantages of the herein described invention will be apparent to those skilled in the-art.,'witl1'- out further description, and it will be under stood that various changes in. the size. shape,

proportion and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advan-- tages of the invention. I

Having thus tully described our invention, what we claim as new, and desire to secure by Letters Patent, is:

1. A sitter comprising oppositeh related receptacles, one'of wlnch has a. roundedclosed outer end, the other having an open 'end'a'nd a detachableclosure therefor, a

pivotal mounting for the sitter carried by the first mentioned receptacle, and sifting means interposed between the receptacles.

2.. A sifter comprising oppositely related receptacles," one of. which has a rounded clowd'outer end, the other having an open end' and a. detachable closure therefor. a pivotal mounting for the sitter carried by the first mentioned receptacle. a screen interposed'bet-ween the receptaclesaand asweep. operating over the screen.

3. A siftew comprising a' tubular body having-threaded margins. oppos1tel -"d1sposed receptacles having threaded margins screwed to the margins of the body. a screen across'the body. sweeps operating on oppo- -means for the sweeps projecting from the other receptacle. I

4- .r Sifter comprising a support, oppositelyrelated receptacles, a screen interposed between-the receptacles, a pivot mounting between one of the receptacles and the support that permits the swinging of the receptacles to reversed. relation, agitator means operating onthe screen, and means projecting from the other receptacle for operating the agitator means.

In a sifter. the combination wit-h a bracket having. spaced arms. of a reversible body comprising an intermediate threaded ring and a screen across the same, and oppositely disposed receptacles screwed to the ring. sweeps operating over the faces of the screen. operating means for the sweeps projecting-fronr one. of the receptacles, and trunnions on the other receptacle journaled on the arms of the bracket.

- 6. In a siftcr thc col'nbinatn'm with a body and a screen thereon. ot'a rotarfv sweep operating over the screen. an' operating shaft in the body geared to the sweep. and a housing for the gearing comprising semi-tubular sectionsjoined at their side margins, and a cap detachablv mounted on the ends of the assembled sections.

7'. In a sitter. the combination with a body and a screen thereon. of a rotary sweep operating over the screen. an operating shaft on the body geared to the sweep, and a housing for the, gearing comprising semi tubular sections having their side margins provided respectively with openings and holding tongues passed'through the openings, and a cap detachablv mounted on the ends. of the assembled sections.-

' 8. In a sitter. the'combination with a body and a screen thereon. of a rotary sweep-operating over the SC1'QQll,-tl l1 operating shaft on the body geared to the sweep, and a housing for the gearing comprising semi-tubular sections joined at their side margins, the ends of said sections having screw threads, and a. cap threaded. on said ends.

9. In a sitter, the combination with a body and a screen thereon, of a rotarivsweep 0pcrating over the screen, an operating shaft. on the body geared to the sweep, and a housing for the gearing comprising semi-tubular section's having their side margins oversaid ends andscrewed upper ends of the sections being thread t 6. th reon a screen across the rim n supportin bra cket, and trunnions on the it liiif: passing through the screen, sweefa s other receptiicle yournaled 1n sald bracket. 1 on the shaft operating on opposite sides of In testimony whereof, we atiix our s1gna- 0 the screen, a shaft in on; of the recapitgtilfis tures. v

5 ro'ectin therefrom an a so genre e first Shaft, a housing for the gearmg loceted BESSIE A. oiggi l sorr. in the receptacle carrying the second shaft, OLIVER R.

Certificate of Qorrection.

It is hereby certified that Letters Patent No. 1,563 722, granted December 1, 1925, ,upon the application of Bessie A. Carlson and (Sliver R. Snow, of Newcastle, Wyoming, for an improvement in Sifters, were erroneously issued, by direct and me sne assignments of three-fourths, to Bessie A. Carlson and one-fourth to Mary B. Carleton, both of Newcastle, Wyoming, whereas said Letters Patent should have been issued three-fourtilsto said Bessie A. Carlson and oats-eighth to Mary 13.. Carleton, both of Newcastle, Wyoming, as assignee, by mesne assignments, as showh by the records of assignments in this office"; and that the said Letters Patent should be read with thiscorrection therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 19th day (if-January, A. D. 1926.

[SEALJ WM. A. KINN AN,

Acting Commissioner of Patents. 

